www.midwayusa.com/product/169107/midwayusa-competition-shooting-mat-pvc-coated-polyester-olive-drab
www.midwayusa.com/product/276544/midwayusa-pro-series-competition-shooting-mat-pvc-coated-polyester-olive-drab
Both the standard and bigger mat on sale. If you like to sprawl in prone like me, I highly recommend the larger mat.